JPH04158732A - Extended opening and turning of croissant dough piece and system therefor - Google Patents

Abstract

PURPOSE:To provide the title system so designed that a dough piece row is separated from the adjacent row in a zigzag fashion toward the carrying direction and then turned by 90 deg., thereby doing away with the need for broadening the width of the conveyor for such turning. CONSTITUTION:A row b of dough pieces 2 is separated from the adjacent row a of said pieces 2 in a zigzag fashion toward the carrying direction using a separating means 5 and then turned by 90 deg. through a relevant device installed on a downstream conveyor 4, thus ensuring the base 21 to be situated in the front. Thereby, the base of the dough pieces can be properly charged into a downstream wrapping-down unit for croissant.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for aligning pieces of dough in an apparatus for automatically forming croissants and the like.

(Prior art) When forming a croissant, conventionally, a triangular piece of dough is obtained from a dough sheet, and the dough is rolled up from the bottom of the dough.When this is continuously done using a rolling device such as a croissant molder, this method is used. They are arranged so that the base of the triangle is perpendicular to the transport direction and then fed into the device.

As a conventional device for aligning croissant-like dough pieces, there is Patent No. 1,343,038 owned by the present applicant.

This device cuts a strip of fabric that is continuously conveyed so that the bottom of each triangular piece of fabric is parallel to the direction of travel.
A dough holding member for separating the dough pieces in the traveling direction from the fast-speed downstream transport conveyor and aligning the dough pieces increases the distance between the dough pieces in the width direction, and also increases the distance between the dough pieces in the width direction. is perpendicular to the direction of travel (so that the direction is rotated 90 degrees.

In this device, when rotating a piece of dough 90 degrees, the distance between each piece of dough is widened in the width direction, as shown in Figure 5, so that the corners of adjacent pieces of dough do not interfere with each other. Therefore, the width of the conveyor needs to be increased from width W to width W2, and when separating and rotating these dough pieces in multiple rows, the downstream conveyor becomes considerably wider than the upstream conveyor. However, the disadvantage is that the device becomes large.

(Means for Solving the Problems) The present invention solves these problems, eliminates the need to expand the conveyor in the width direction when expanding the dough pieces, and ensures that the triangular base of the dough pieces advances. Orient it at right angles to the direction,
It transports the fabric pieces to a downstream winding device.
Its configuration consists of an upstream conveyor that cuts and conveys the dough sheet into polygonal dough pieces with one side parallel to the conveying direction of the dough, and a downstream conveyor that runs faster than the upstream conveyor in series. A dough piece separating device is provided which can space the dough pieces across the upstream and downstream conveyors and arrange them in a staggered manner, and the dough pieces are placed on the downstream conveyor so that the one side is perpendicular to the conveying direction. A rotating device is provided for moving the dough pieces, and the dough piece separating device and the rotating device are operated sequentially in accordance with the movement of the dough pieces.

(Example) The expansion direction changing means of the present invention will be explained based on an example in FIG. Cut into pieces 2 of equilateral triangular dough.

At this time, two types of groups a and b are formed in the dough pieces 2, in which the bottom sides 21 thereof face one side and the other side.

Next, at the transition point between the upstream conveyor 3 and the downstream conveyor 4, the dough pieces 2 are separated from the dough sheet 1 by a separating device 5 for each group of dough pieces 2.

When separating the dough pieces 2, the distance between adjacent dough pieces 2 in the advancing direction is changed for each group, and the dough pieces 2 are arranged in a staggered manner (see Figure 1).

The dough pieces 2 arranged in a staggered manner by the spacing device 5 are rotated in the direction of the arrow by the rotation device 6, and the group a is rotated 90 degrees to the left.
In group b, the dough piece 2 is rotated clockwise alternately by 90 degrees to orient the bottom side of the dough piece 2 in the conveying direction as shown in (c).

Next, the devices constituting each part will be explained.

The spacing device 5 is provided with a claw 51 at the lower end of an arm 52 for grasping the dough 2 and separating it downstream from the dough sheet 1.

The arm 52 is supported by an arm holding member 54, and the claw 51 is moved up and down by the up and down movement of this holding member 54.

The arm 52 is loosely fitted into the pipe 53, and
are supported by brackets 553 and 554.

The brackets 553 and 554 are attached to the separation arm 55 that extends in the width direction of the conhair.
5 is supported by rails 56 provided on both sides of the conveyor and is provided so as to be able to reciprocate in the conveyance direction.

In this embodiment, two spacing arms 55 are provided in series, and the pipe 53 is held by brackets 553 and 554 attached to the respective arms 551 and 552.

Cam followers 571 and 572 attached to the separation arms 551 and 552 are fitted into two cam grooves 581 and 582 provided in the cam 58, and rotation of the cam causes the separation arms 551 and 552 to reciprocate in the transport direction.

The cam groove 582 has a larger stroke in the advancing direction than the other cam groove 581, and at the upstream position, which is the starting position of one rotation of the cam, each arm 52 is positioned on a straight line in the width direction, and the cam groove 58 Arm 552 by rotation
is configured to move further downstream than the arm 551.

As shown in FIG. 4, the rotating device 6 has claws 62 that grip and rotate the fabric, and a pinion gear 64 is loosely fitted onto a shaft 63 and coaxially therewith.

Further, a pawl 62 enters and exits through a small hole in a presser plate 69 attached to the lower end of the pinion gear.

The pinion gear 64 meshes with the rack of the rack member 65.

The rack member 65 is driven by a shaft 67 that is reciprocated by the rotation of a cam 66 as shown in FIG.

This rotation of the pinion gear 64 causes the pawl 62 to rotate 90 degrees via a presser plate 69 attached to the lower end of the pinion gear 64.

The vertical movement of the pawl 62 is performed by the vertical movement of a shaft holder 68 attached to the upper end of the shaft 63.

The operating order of this rotating device 6 is a cycle of lowering of the claw 62 - rotation of the claw 62 - raising of the claw 62 - rotation of the claw 62, and the dough piece 2 held by the claw 62 slips on the conveyor. It rotates while

Since the groups a and b of the dough pieces 2 are rotated in different directions, the cam 66 has a cam shape such that the direction of rotation of the claw 62 is changed for each group.

The lower end of the alignment plate 7 located downstream of the rotating device 6 approaches the top of the conveyor by a cam 71 in the movement of the arrow, and as it approaches, the bottom side of the passing dough pieces comes into contact and is stopped for a short time. The paper is aligned at right angles to the transport direction.

In this way, the functions of the separating device 5 that separates the cut dough pieces 2, the rotation device 6 that rotates them, and the alignment plate 7 that aligns the bottom sides are operated in conjunction with each other in synchronization with the progress of the dough pieces 2. be.

As explained above, the dough pieces 2 cut from the dough sheet 1 are placed on the upstream conveyor 3, and the pawls 51 alternately supported by the spacing arms 551 and 552 descend to grasp the dough pieces 2, and the spacing arms 551 and 552 By moving downstream by a predetermined amount, the dough pieces 2 are separated from the dough sheet and arranged in a staggered manner.

Subsequently, when the piece of dough 2 moves downstream and comes under the rotating device 6, the pawl 62 of the rotating device 6 is activated to rotate the piece of dough.

As described above, in the present invention, by arranging the pieces of fabric in a staggered manner without separating them in the width direction, it is possible to create an interval for rotating the pieces of fabric.

In the prior art, the distance between each fabric piece is widened in the width direction, but as a result, the width Wt of the downstream conveyor is equal to the width W of the upstream conveyor, as shown in FIG. 5(a).

However, the present invention solves this problem, and as shown in Figure 1 (a), the width of the upstream conveyor and the downstream conveyor are the same width. W, and it is no longer necessary to make the device larger than necessary.

In addition, due to various reasons, such as a piece of dough held by the claw 62 coming off during rotation, resulting in insufficient rotation of the dough, or a piece of dough sticking and not being released from the claw, the dough may become loose after passing through the rotating device. Even if the bottom sides of the pieces are uneven, the alignment plate 7 aligns the bottom sides of the triangles, making it possible to correct errors in direction change of the rotating device, and to ensure that the dough pieces are not placed in the downstream croincin winding device. It is possible to accurately insert the bottom.

(Effects of the Invention) As explained above, it is no longer necessary to widen the conveyor width for direction change unlike in conventional direction change devices.
This eliminates the need for the installation space of the equipment, which has a great effect in mass production, saves labor in equipment in the production process, and reduces roll-up losses in the next process of forming croissants. be.

[Brief explanation of the drawing]

Fig. 1 is an operational diagram of the fabric expansion direction conversion according to the present invention. Fig. 2 is an overall side view of an embodiment of the invention. Fig. 3 is an overall plan view of an embodiment of the invention. Fig. 4 is a partially sectional side view of a rotating device. FIG. 5 shows an action diagram of changing the direction of fabric expansion in the prior art. l-・-1--Dough sheet 2-----One dough piece 21-----One bottom side 3, ---Upstream conveyor 4--One--Downstream conveyor 5---- -One-separation device 51--------
Claw 52-------Arm 53------Pipe 54---1~---Arm holding part 55------
-Separation arm 551.552- ・-・-Separation arm 5
53.554---Bracket 56------
・・−Rail 57−・−−1−−−−Cam follower 58−・−1111 Cam 581.58
2-------Groove 583--Shaft 6--1--Rotating device 62--11 claw 63--1111 Shaft 64-- ----1--Pinion gear 6
5-1---Rack member 66--1--Cam 6--Shaft 68--
−1−−−−−−Shaft holding part 69・−・−1−−
---Press plate 7--1--Aligning plate 71-----
1------Cam aXb・------m-Dough piece groups WI, WZ, W3------Conveyor width (F) ] (0 pieces (C) Fig. 5 (A) (b) (c) (d)

Claims (3)

[Claims] (1) Continuously transport pieces of dough that have been cut into polygons and are lined up so that their predetermined sides are parallel to the conveying direction of the conveyor, and transport one row of dough pieces starting from the next row of dough pieces. When separating the rows of fabric pieces in the direction, after spacing the rows of fabric pieces in a staggered manner,
A method for expanding and changing the direction of a piece of croissant dough, characterized in that the piece of croissant dough is rotated by 0 degrees so that the predetermined side is located at the front. (2) An upstream conveyor that cuts and conveys the dough sheet so that one specific side of the polygonal dough piece is parallel to the conveying direction of the dough, and a downstream conveyor that is faster than the upstream conveyor are installed in series, A dough piece separating device is provided that can separate the dough pieces across the upstream and downstream conveyors and arrange them in a staggered manner, and the dough pieces are rotated on the downstream conveyor so that one side is perpendicular to the conveying direction. A device for expanding and changing the direction of a piece of croissant dough, characterized in that it is provided with a rotating device for rotating the croissant dough piece. (3) The apparatus according to claim 2, characterized in that an alignment plate is provided downstream of the rotating device.